Lumen vs Brightness - What's the difference?
lumen | brightness |
(physics) In the International System of Units, the derived unit of luminous flux; the light that is emitted in a solid angle of one steradian from a source of one candela. Symbol: lm.
(anatomy) The cavity or channel within a tube or tubular organ.
(botany) The cavity bounded by a plant cell wall.
(medicine) The bore of a tube such as a hollow needle or catheter.
The quality of being bright.
*, chapter=5
, title= The perception elicited by the luminance of an object.
Intelligence, cleverness.
As nouns the difference between lumen and brightness
is that lumen is in the International System of Units, the derived unit of luminous flux; the light that is emitted in a solid angle of one steradian from a source of one candela. Symbol: lm while brightness is the quality of being bright.lumen
English
Noun
(en-noun)Derived terms
* lumenal * luminal ----brightness
English
Noun
(wikipedia brightness) (en-noun)The Mirror and the Lamp, passage=Here, in the transept and choir, where the service was being held, one was conscious every moment of an increasing brightness ; colours glowing vividly beneath the circular chandeliers, and the rows of small lights on the choristers' desks flashed and sparkled in front of the boys' faces, deep linen collars, and red neckbands.}}
